1. I 've made a full tutorial for building a node on RPi 4B+, but should be the same on RPi 5. My setup is full gui-less though.
2. Another gui-less tutorial is the famous RaspiBolt. Incredible tutorial but more technically advanced.
3. Lastly, from the plug-and-play suites, I love Start9. You can just let it run bitcoin core and nothing else.
to be honest, if you 're a little geeky, you'll enjoy option (2) more than anything.
Go for raspberry Pi's OS because it's meant to work perfectly with the hardware. Careful, if you follow my option (3), it's the only option in which you don't have to choose an OS because it's already pre-installed on Start9's image.